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Alunite and Microcline Physical Properties


Microcline and Alunite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.6-2.9   
2.55-2.63   

Fracture
Conchoidal, Uneven   
Uneven, Uneven, Gems   

Cleavage
On {0001}, perfect   
{001} Perfect, {010} Good   

Mohs Hardness
3.5-4   
6-6.5   

Chemical Composition
KAl3(SO4)2(OH)6   
KAlSi 3O 8Arthur Thomas , Gemstones (2009)   

Optical Properties >>
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Alunite and Microcline Chemical Formula

While comparing Alunite and Microcline physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Alunite and Microcline chemical formula.

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Alunite and Microcline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Alunite and Microcline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Alunite and Microcline Optical Properties during the identification of gemstone. Specific gravity of Alunite is 2.55-2.63 whereas that of Microcline is 2.55-2.63.

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